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  /*
   * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   * 
   *  http://aws.amazon.com/apache2.0
   * 
  * or in the "license" file accompanying this file. This file is distributed
  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
  * express or implied. See the License for the specific language governing
  * permissions and limitations under the License.
  */
 package com.amazonaws.services.cloudsearchv2.model;
 

A named expression that can be evaluated at search time. Can be used to sort the search results, define other expressions, or return computed information in the search results.

 
 public class Expression implements SerializableCloneable {

    
Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).

Constraints:
Length: 1 - 64
Pattern: [a-z][a-z0-9_]*

 
     private String expressionName;

    
The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.

Constraints:
Length: 1 - 10240

 
     private String expressionValue;

    
Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).

Constraints:
Length: 1 - 64
Pattern: [a-z][a-z0-9_]*

Returns:
Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).
 
     public String getExpressionName() {
         return ;
     }
    
    
Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).

Constraints:
Length: 1 - 64
Pattern: [a-z][a-z0-9_]*

Parameters:
expressionName Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).
 
     public void setExpressionName(String expressionName) {
         this. = expressionName;
     }
    
    
Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).

Returns a reference to this object so that method calls can be chained together.

Constraints:
Length: 1 - 64
Pattern: [a-z][a-z0-9_]*

Parameters:
expressionName Names must begin with a letter and can contain the following characters: a-z (lowercase), 0-9, and _ (underscore).
Returns:
A reference to this updated object so that method calls can be chained together.
 
     public Expression withExpressionName(String expressionName) {
         this. = expressionName;
         return this;
    }

    
The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.

Constraints:
Length: 1 - 10240

Returns:
The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.
    public String getExpressionValue() {
        return ;
    }
    
    
The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.

Constraints:
Length: 1 - 10240

Parameters:
expressionValue The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.
    public void setExpressionValue(String expressionValue) {
        this. = expressionValue;
    }
    
    
The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.

Returns a reference to this object so that method calls can be chained together.

Constraints:
Length: 1 - 10240

Parameters:
expressionValue The expression to evaluate for sorting while processing a search request. The Expression syntax is based on JavaScript expressions. For more information, see Configuring Expressions in the Amazon CloudSearch Developer Guide.
Returns:
A reference to this updated object so that method calls can be chained together.
    public Expression withExpressionValue(String expressionValue) {
        this. = expressionValue;
        return this;
    }

    
Returns a string representation of this object; useful for testing and debugging.

Returns:
A string representation of this object.
See also:
java.lang.Object.toString()
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getExpressionName() != nullsb.append("ExpressionName: " + getExpressionName() + ",");
        if (getExpressionValue() != nullsb.append("ExpressionValue: " + getExpressionValue() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getExpressionName() == null) ? 0 : getExpressionName().hashCode()); 
        hashCode = prime * hashCode + ((getExpressionValue() == null) ? 0 : getExpressionValue().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == objreturn true;
        if (obj == nullreturn false;
        if (obj instanceof Expression == falsereturn false;
        Expression other = (Expression)obj;
        
        if (other.getExpressionName() == null ^ this.getExpressionName() == nullreturn false;
        if (other.getExpressionName() != null && other.getExpressionName().equals(this.getExpressionName()) == falsereturn false
        if (other.getExpressionValue() == null ^ this.getExpressionValue() == nullreturn false;
        if (other.getExpressionValue() != null && other.getExpressionValue().equals(this.getExpressionValue()) == falsereturn false
        return true;
    }
    
    @Override
    public Expression clone() {
        try {
            return (Expressionsuper.clone();
        
        } catch (CloneNotSupportedException e) {
            throw new IllegalStateException(
                    "Got a CloneNotSupportedException from Object.clone() "
                    + "even though we're Cloneable!",
                    e);
        }
        
    }
}
    
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